Professional, scientific and technical ยท 500 to 999 staff
Diamond Light Source Limited
Company number 04375679 ยท Last year's median gap 13.7%
Key figures
10.4%median hourly pay gap (sector median 12.1%)
17.0%of the top pay quartile are women
-23.1%median bonus gap
| Measure | This employer | Sector median |
|---|---|---|
| Median hourly pay gap how much less women earn per hour than men, at the median | 10.4% | 12.1% |
| Mean hourly pay gap | 7.1% | 14.5% |
| Median bonus gap | -23.1% | 20.0% |
| Women paid a bonus | 86.7% | 56.2% |
| Men paid a bonus | 88.0% | 58.7% |
| Women in the top pay quartile | 17.0% | 36.8% |
| Women in the lowest pay quartile | 29.0% | 56.0% |
| Women in the workforce (from quartiles) | 23.3% | 47.8% |
A positive gap means men are paid more; a negative gap means women are. Sector: Professional, scientific and technical (775 employers). The employer's own statement
Source: UK Gender Pay Gap Service, 2025-26 reports (open data, Open Government Licence v3.0). Every employer with 250 or more staff reports its gender pay gap each year. Compiled by The Hardest Market.